| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #ifndef MBOOT_H |
| #define MBOOT_H |
| |
| #include <arch/io.h> |
| #include <acpi/acpi.h> |
| #include <string.h> |
| #include <console/console.h> |
| #include <cbfs.h> |
| #include <lib.h> |
| #include <boot/coreboot_tables.h> |
| #include <security/tpm/tss/tcg-2.0/tss_structures.h> |
| #include <security/tpm/tss.h> |
| #include <swab.h> |
| |
| /* TPM2 interface */ |
| #define EFI_TPM2_ACPI_TABLE_START_METHOD_TIS 6 |
| #define TPM_SHA1_160_HASH_LEN 0x14 |
| |
| /* Part 2, section 5.4: TPM_DIGEST */ |
| |
| /* Index to a PCR register */ |
| typedef uint32_t TPM_PCRINDEX; |
| typedef uint32_t TCG_EVENTTYPE; |
| typedef TPM_PCRINDEX TCG_PCRINDEX; |
| typedef int8_t TCG_DIGEST; |
| |
| /* TCG_PCR_EVENT_HDR */ |
| typedef struct { |
| TCG_PCRINDEX pcrIndex; |
| TCG_EVENTTYPE eventType; |
| TCG_DIGEST digest[TPM_SHA1_160_HASH_LEN]; |
| uint32_t eventSize; |
| } __packed TCG_PCR_EVENT_HDR; |
| |
| /* TCG_PCR_EVENT2_HDR */ |
| typedef struct { |
| TCG_PCRINDEX pcrIndex; |
| TCG_EVENTTYPE eventType; |
| TPML_DIGEST_VALUES digest; |
| uint32_t eventSize; |
| } __packed TCG_PCR_EVENT2_HDR; |
| |
| typedef uint32_t EFI_TCG2_EVENT_ALGORITHM_BITMAP; |
| |
| #define EFI_TCG2_BOOT_HASH_ALG_SHA1 0x00000001 |
| #define EFI_TCG2_BOOT_HASH_ALG_SHA256 0x00000002 |
| #define EFI_TCG2_BOOT_HASH_ALG_SHA384 0x00000004 |
| #define EFI_TCG2_BOOT_HASH_ALG_SHA512 0x00000008 |
| #define EFI_TCG2_BOOT_HASH_ALG_SM3_256 0x00000010 |
| |
| /* Standard event types */ |
| #define EV_POST_CODE ((TCG_EVENTTYPE) 0x00000001) |
| #define EV_NO_ACTION ((TCG_EVENTTYPE) 0x00000003) |
| #define EV_SEPARATOR ((TCG_EVENTTYPE) 0x00000004) |
| #define EV_S_CRTM_CONTENTS ((TCG_EVENTTYPE) 0x00000007) |
| #define EV_S_CRTM_VERSION ((TCG_EVENTTYPE) 0x00000008) |
| #define EV_CPU_MICROCODE ((TCG_EVENTTYPE) 0x00000009) |
| #define EV_TABLE_OF_DEVICES ((TCG_EVENTTYPE) 0x0000000B) |
| |
| #define MBOOT_PCR_INDEX_0 0x0 |
| #define MBOOT_PCR_INDEX_1 0x1 |
| #define MBOOT_PCR_INDEX_2 0x2 |
| #define MBOOT_PCR_INDEX_3 0x3 |
| #define MBOOT_PCR_INDEX_4 0x4 |
| #define MBOOT_PCR_INDEX_5 0x5 |
| #define MBOOT_PCR_INDEX_6 0x6 |
| #define MBOOT_PCR_INDEX_7 0x7 |
| |
| /* |
| * used to indicate a hash is provide so there is no need to perform the |
| * measurement |
| */ |
| #define MBOOT_HASH_PROVIDED (0x00000001) |
| |
| int is_zero_buffer(void *buffer, unsigned int size); |
| |
| tpm_result_t mboot_hash_extend_log(uint64_t flags, uint8_t *hashData, uint32_t hashDataLen, |
| TCG_PCR_EVENT2_HDR *newEventHdr, uint8_t *eventLog); |
| |
| void mboot_print_buffer(uint8_t *buffer, uint32_t bufferSize); |
| |
| tpm_result_t mb_crtm(void); |
| |
| typedef struct { |
| const char *cbfs_name; |
| uint32_t cbfs_type; |
| uint32_t pcr; |
| TCG_EVENTTYPE eventType; |
| const char *event_msg; |
| } mboot_measure_item_t; |
| |
| tpm_result_t mb_measure_log_worker(const char *name, uint32_t type, uint32_t pcr, |
| TCG_EVENTTYPE eventType, const char *event_msg); |
| |
| tpm_result_t mb_measure_log_start(void); |
| void invalidate_pcrs(void); |
| |
| EFI_TCG2_EVENT_ALGORITHM_BITMAP tpm2_get_active_pcrs(void); |
| |
| tpm_result_t tpm2_get_capability_pcrs(TPML_PCR_SELECTION *Pcrs); |
| |
| tpm_result_t mb_measure(int wake_from_s3); |
| tpm_result_t mb_entry(int wake_from_s3); |
| |
| int log_efi_specid_event(void); |
| int log_event_tcg_20_format(TCG_PCR_EVENT2_HDR *EventHdr, uint8_t *EventLog); |
| int log_event_tcg_12_format(TCG_PCR_EVENT2_HDR *EventHdr, uint8_t *EventLog); |
| |
| int get_intel_me_hash(uint8_t *hash); |
| |
| #endif /* MBOOT_H */ |